Watsonias & fire.

I think I read that some of these fire flowers can be flowered in the
garden if they are fertilized. It could be the minerals in the ashes
that triggers flowering.
I think it could also be the reduction of competition and clear skies
overhead - but then, I live in a place that doesn't have much clear
sky, so a fire here that kills trees makes a big difference in the
amount of light reaching the ground. That might not be the case in
South Africa.
--
Diane Whitehead Victoria, British Columbia, Canada
maritime zone 8
cool mediterranean climate (dry summer, rainy winter - 68 cm annually)
sandy soil